i think you should call peter and ask him. most likely he will be busy when you call but he will call you back if you leave a detailed message. I was not aware that soundsmith also used boron cantilevers - most of us who have had the ruby upgrade have extremely positive results. However, I have not read anything about carts in that class having been upgraded to ruby - although i suspect you will have an improvement in detail as well as warmth (or less distortion). I heard the Soundsmith setup at the Audio Show in NY last yearÂ… superior sound! without tubes! Go with peter's recommendation.
